hello, you're posting in the firefox support forum - firefox is a browser and doesn't handle your emails. in case you're using thunderbird as a mail client and have a question about it please say so, then we will move your question into the thunderbird queue. if you're accessing your mails through webmail, contact your email-provider in order to help you further...

Problems with email and how to find help

jeffmary4 said

I need top recover an e mail that was deleted in error this morning

alright, please refer to https://help.yahoo.com/kb/mail-for-desktop/recover-lost-deleted-emails-sln2552.html in this case.

jeffmary4 said

I need top recover an e mail that was deleted in error this morning

Thanks